<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>转化为字符串</title>
</head>

<body>
    <script>
        var age = 22;
        console.log(typeof age);
        // number 转化为字符串
        age = age.toString();
        console.log(typeof age);

        // 强制转换
        let score = String(100);
        console.log(typeof score);

        //prompt() 接收的数据作为字符串
        let year = prompt('请输入你的出生日期');
        console.log(typeof year);
    </script>
</body>

</html>